Aclosed, rigid tank contains a two‐phase liquid–vapor mixture of refrigerant 22 initially at −20°c with a quality of 50.36%. energy transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bar. determine the final temperature, in °c. if the final state is in the superheated vapor region, at what temperature, in °c, does the tank contain only saturated vapor?